| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals none --version 5 |
| ; RUN: opt -passes=loop-vectorize -mcpu=core-avx2 -mtriple=x86_64-unknown-linux-gnu -S %s | FileCheck --check-prefix AUTO_VEC %s |
| |
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| |
| ; This test checks auto-vectorization with FP induction variable. |
| ; FMF is required on the IR instructions. |
| |
| ;void fp_iv_loop1(ptr __restrict__ A, int N) { |
| ; float x = 1.0; |
| ; for (int i=0; i < N; ++i) { |
| ; A[i] = x; |
| ; x += 0.5; |
| ; } |
| ;} |
| |
| define void @fp_iv_loop1(ptr noalias nocapture %A, i32 %N) #0 { |
| ; AUTO_VEC-LABEL: define void @fp_iv_loop1( |
| ; AUTO_VEC-SAME: ptr noalias captures(none) [[A:%.*]], i32 [[N:%.*]]) #[[ATTR0:[0-9]+]] { |
| ; AUTO_VEC-NEXT: [[ENTRY:.*:]] |
| ; AUTO_VEC-NEXT: [[CMP4:%.*]] = icmp sgt i32 [[N]], 0 |
| ; AUTO_VEC-NEXT: br i1 [[CMP4]], label %[[ITER_CHECK:.*]], label %[[FOR_END:.*]] |
| ; AUTO_VEC: [[ITER_CHECK]]: |
| ; AUTO_VEC-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64 |
| ; AUTO_VEC-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP0]], 4 |
| ; AUTO_VEC-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[VEC_EPILOG_SCALAR_PH:.*]], label %[[VECTOR_MAIN_LOOP_ITER_CHECK:.*]] |
| ; AUTO_VEC: [[VECTOR_MAIN_LOOP_ITER_CHECK]]: |
| ; AUTO_VEC-NEXT: [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 [[TMP0]], 32 |
| ; AUTO_VEC-NEXT: br i1 [[MIN_ITERS_CHECK1]], label %[[VEC_EPILOG_PH:.*]], label %[[VECTOR_PH:.*]] |
| ; AUTO_VEC: [[VECTOR_PH]]: |
| ; AUTO_VEC-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP0]], 32 |
| ; AUTO_VEC-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP0]], [[N_MOD_VF]] |
| ; AUTO_VEC-NEXT: [[DOTCAST:%.*]] = sitofp i64 [[N_VEC]] to float |
| ; AUTO_VEC-NEXT: [[TMP6:%.*]] = fmul fast float 5.000000e-01, [[DOTCAST]] |
| ; AUTO_VEC-NEXT: [[IND_END:%.*]] = fadd fast float 1.000000e+00, [[TMP6]] |
| ; AUTO_VEC-NEXT: br label %[[VECTOR_BODY:.*]] |
| ; AUTO_VEC: [[VECTOR_BODY]]: |
| ; AUTO_VEC-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ] |
| ; AUTO_VEC-NEXT: [[VEC_IND:%.*]] = phi <8 x float> [ <float 1.000000e+00, float 1.500000e+00, float 2.000000e+00, float 2.500000e+00, float 3.000000e+00, float 3.500000e+00, float 4.000000e+00, float 4.500000e+00>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ] |
| ; AUTO_VEC-NEXT: [[STEP_ADD:%.*]] = fadd fast <8 x float> [[VEC_IND]], splat (float 4.000000e+00) |
| ; AUTO_VEC-NEXT: [[STEP_ADD2:%.*]] = fadd fast <8 x float> [[STEP_ADD]], splat (float 4.000000e+00) |
| ; AUTO_VEC-NEXT: [[STEP_ADD3:%.*]] = fadd fast <8 x float> [[STEP_ADD2]], splat (float 4.000000e+00) |
| ; AUTO_VEC-NEXT: [[TMP1:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[INDEX]] |
| ; AUTO_VEC-NEXT: [[TMP2:%.*]] = getelementptr inbounds float, ptr [[TMP1]], i32 8 |
| ; AUTO_VEC-NEXT: [[TMP3:%.*]] = getelementptr inbounds float, ptr [[TMP1]], i32 16 |
| ; AUTO_VEC-NEXT: [[TMP4:%.*]] = getelementptr inbounds float, ptr [[TMP1]], i32 24 |
| ; AUTO_VEC-NEXT: store <8 x float> [[VEC_IND]], ptr [[TMP1]], align 4 |
| ; AUTO_VEC-NEXT: store <8 x float> [[STEP_ADD]], ptr [[TMP2]], align 4 |
| ; AUTO_VEC-NEXT: store <8 x float> [[STEP_ADD2]], ptr [[TMP3]], align 4 |
| ; AUTO_VEC-NEXT: store <8 x float> [[STEP_ADD3]], ptr [[TMP4]], align 4 |
| ; AUTO_VEC-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 32 |
| ; AUTO_VEC-NEXT: [[VEC_IND_NEXT]] = fadd fast <8 x float> [[STEP_ADD3]], splat (float 4.000000e+00) |
| ; AUTO_VEC-NEXT: [[TMP5:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; AUTO_VEC-NEXT: br i1 [[TMP5]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] |
| ; AUTO_VEC: [[MIDDLE_BLOCK]]: |
| ; AUTO_VEC-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP0]], [[N_VEC]] |
| ; AUTO_VEC-NEXT: br i1 [[CMP_N]], label %[[FOR_END_LOOPEXIT:.*]], label %[[VEC_EPILOG_ITER_CHECK:.*]] |
| ; AUTO_VEC: [[VEC_EPILOG_ITER_CHECK]]: |
| ; AUTO_VEC-NEXT: [[DOTCAST12:%.*]] = sitofp i64 [[N_VEC]] to float |
| ; AUTO_VEC-NEXT: [[TMP11:%.*]] = fmul fast float 5.000000e-01, [[DOTCAST12]] |
| ; AUTO_VEC-NEXT: [[IND_END1:%.*]] = fadd fast float 1.000000e+00, [[TMP11]] |
| ; AUTO_VEC-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_MOD_VF]], 4 |
| ; AUTO_VEC-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label %[[VEC_EPILOG_SCALAR_PH]], label %[[VEC_EPILOG_PH]], !prof [[PROF3:![0-9]+]] |
| ; AUTO_VEC: [[VEC_EPILOG_PH]]: |
| ; AUTO_VEC-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 0, %[[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; AUTO_VEC-NEXT: [[BC_RESUME_VAL:%.*]] = phi float [ [[IND_END]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 1.000000e+00, %[[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; AUTO_VEC-NEXT: [[N_MOD_VF2:%.*]] = urem i64 [[TMP0]], 4 |
| ; AUTO_VEC-NEXT: [[N_VEC3:%.*]] = sub i64 [[TMP0]], [[N_MOD_VF2]] |
| ; AUTO_VEC-NEXT: [[DOTCAST4:%.*]] = sitofp i64 [[N_VEC3]] to float |
| ; AUTO_VEC-NEXT: [[TMP12:%.*]] = fmul fast float 5.000000e-01, [[DOTCAST4]] |
| ; AUTO_VEC-NEXT: [[TMP10:%.*]] = fadd fast float 1.000000e+00, [[TMP12]] |
| ; AUTO_VEC-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <4 x float> poison, float [[BC_RESUME_VAL]], i64 0 |
| ; AUTO_VEC-NEXT: [[DOTSPLAT:%.*]] = shufflevector <4 x float> [[DOTSPLATINSERT]], <4 x float> poison, <4 x i32> zeroinitializer |
| ; AUTO_VEC-NEXT: [[INDUCTION:%.*]] = fadd fast <4 x float> [[DOTSPLAT]], <float 0.000000e+00, float 5.000000e-01, float 1.000000e+00, float 1.500000e+00> |
| ; AUTO_VEC-NEXT: br label %[[VEC_EPILOG_VECTOR_BODY:.*]] |
| ; AUTO_VEC: [[VEC_EPILOG_VECTOR_BODY]]: |
| ; AUTO_VEC-NEXT: [[INDEX10:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], %[[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT13:%.*]], %[[VEC_EPILOG_VECTOR_BODY]] ] |
| ; AUTO_VEC-NEXT: [[VEC_IND11:%.*]] = phi <4 x float> [ [[INDUCTION]], %[[VEC_EPILOG_PH]] ], [ [[VEC_IND_NEXT12:%.*]], %[[VEC_EPILOG_VECTOR_BODY]] ] |
| ; AUTO_VEC-NEXT: [[TMP8:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[INDEX10]] |
| ; AUTO_VEC-NEXT: store <4 x float> [[VEC_IND11]], ptr [[TMP8]], align 4 |
| ; AUTO_VEC-NEXT: [[INDEX_NEXT13]] = add nuw i64 [[INDEX10]], 4 |
| ; AUTO_VEC-NEXT: [[VEC_IND_NEXT12]] = fadd fast <4 x float> [[VEC_IND11]], splat (float 2.000000e+00) |
| ; AUTO_VEC-NEXT: [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT13]], [[N_VEC3]] |
| ; AUTO_VEC-NEXT: br i1 [[TMP9]], label %[[VEC_EPILOG_MIDDLE_BLOCK:.*]], label %[[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]] |
| ; AUTO_VEC: [[VEC_EPILOG_MIDDLE_BLOCK]]: |
| ; AUTO_VEC-NEXT: [[CMP_N9:%.*]] = icmp eq i64 [[TMP0]], [[N_VEC3]] |
| ; AUTO_VEC-NEXT: br i1 [[CMP_N9]], label %[[FOR_END_LOOPEXIT]], label %[[VEC_EPILOG_SCALAR_PH]] |
| ; AUTO_VEC: [[VEC_EPILOG_SCALAR_PH]]: |
| ; AUTO_VEC-NEXT: [[BC_RESUME_VAL10:%.*]] = phi i64 [ [[N_VEC3]], %[[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[N_VEC]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 0, %[[ITER_CHECK]] ] |
| ; AUTO_VEC-NEXT: [[BC_RESUME_VAL11:%.*]] = phi float [ [[TMP10]], %[[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[IND_END1]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 1.000000e+00, %[[ITER_CHECK]] ] |
| ; AUTO_VEC-NEXT: br label %[[LOOP:.*]] |
| ; AUTO_VEC: [[LOOP]]: |
| ; AUTO_VEC-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], %[[LOOP]] ], [ [[BC_RESUME_VAL10]], %[[VEC_EPILOG_SCALAR_PH]] ] |
| ; AUTO_VEC-NEXT: [[X_06:%.*]] = phi float [ [[CONV1:%.*]], %[[LOOP]] ], [ [[BC_RESUME_VAL11]], %[[VEC_EPILOG_SCALAR_PH]] ] |
| ; AUTO_VEC-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[INDVARS_IV]] |
| ; AUTO_VEC-NEXT: store float [[X_06]], ptr [[ARRAYIDX]], align 4 |
| ; AUTO_VEC-NEXT: [[CONV1]] = fadd fast float [[X_06]], 5.000000e-01 |
| ; AUTO_VEC-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 |
| ; AUTO_VEC-NEXT: [[LFTR_WIDEIV:%.*]] = trunc i64 [[INDVARS_IV_NEXT]] to i32 |
| ; AUTO_VEC-NEXT: [[EXITCOND:%.*]] = icmp eq i32 [[LFTR_WIDEIV]], [[N]] |
| ; AUTO_VEC-NEXT: br i1 [[EXITCOND]], label %[[FOR_END_LOOPEXIT]], label %[[LOOP]], !llvm.loop [[LOOP5:![0-9]+]] |
| ; AUTO_VEC: [[FOR_END_LOOPEXIT]]: |
| ; AUTO_VEC-NEXT: br label %[[FOR_END]] |
| ; AUTO_VEC: [[FOR_END]]: |
| ; AUTO_VEC-NEXT: ret void |
| ; |
| entry: |
| %cmp4 = icmp sgt i32 %N, 0 |
| br i1 %cmp4, label %loop.preheader, label %for.end |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %loop.preheader, %loop |
| %iv = phi i64 [ %iv.next, %loop ], [ 0, %loop.preheader ] |
| %x.06 = phi float [ %conv1, %loop ], [ 1.000000e+00, %loop.preheader ] |
| %arrayidx = getelementptr inbounds float, ptr %A, i64 %iv |
| store float %x.06, ptr %arrayidx, align 4 |
| %conv1 = fadd fast float %x.06, 5.000000e-01 |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %lftr.wideiv = trunc i64 %iv.next to i32 |
| %exitcond = icmp eq i32 %lftr.wideiv, %N |
| br i1 %exitcond, label %for.end.loopexit, label %loop |
| |
| for.end.loopexit: ; preds = %loop |
| br label %for.end |
| |
| for.end: ; preds = %for.end.loopexit, %entry |
| ret void |
| } |
| |
| ; The same as the previous, but FP operation has no FMF. |
| ; Vectorization should be rejected. |
| ;void fp_iv_loop2(ptr __restrict__ A, int N) { |
| ; float x = 1.0; |
| ; for (int i=0; i < N; ++i) { |
| ; A[i] = x; |
| ; x += 0.5; |
| ; } |
| ;} |
| |
| define void @fp_iv_loop2(ptr noalias nocapture %A, i32 %N) { |
| ; AUTO_VEC-LABEL: define void @fp_iv_loop2( |
| ; AUTO_VEC-SAME: ptr noalias captures(none) [[A:%.*]], i32 [[N:%.*]]) #[[ATTR0]] { |
| ; AUTO_VEC-NEXT: [[ENTRY:.*:]] |
| ; AUTO_VEC-NEXT: [[CMP4:%.*]] = icmp sgt i32 [[N]], 0 |
| ; AUTO_VEC-NEXT: br i1 [[CMP4]], label %[[LOOP_PREHEADER:.*]], label %[[FOR_END:.*]] |
| ; AUTO_VEC: [[LOOP_PREHEADER]]: |
| ; AUTO_VEC-NEXT: br label %[[LOOP:.*]] |
| ; AUTO_VEC: [[LOOP]]: |
| ; AUTO_VEC-NEXT: [[INDVARS_IV_EPIL:%.*]] = phi i64 [ [[INDVARS_IV_NEXT_EPIL:%.*]], %[[LOOP]] ], [ 0, %[[LOOP_PREHEADER]] ] |
| ; AUTO_VEC-NEXT: [[X_06_EPIL:%.*]] = phi float [ [[CONV1_EPIL:%.*]], %[[LOOP]] ], [ 1.000000e+00, %[[LOOP_PREHEADER]] ] |
| ; AUTO_VEC-NEXT: [[ARRAYIDX_EPIL:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[INDVARS_IV_EPIL]] |
| ; AUTO_VEC-NEXT: store float [[X_06_EPIL]], ptr [[ARRAYIDX_EPIL]], align 4 |
| ; AUTO_VEC-NEXT: [[CONV1_EPIL]] = fadd float [[X_06_EPIL]], 5.000000e-01 |
| ; AUTO_VEC-NEXT: [[INDVARS_IV_NEXT_EPIL]] = add nuw nsw i64 [[INDVARS_IV_EPIL]], 1 |
| ; AUTO_VEC-NEXT: [[LFTR_WIDEIV:%.*]] = trunc i64 [[INDVARS_IV_NEXT_EPIL]] to i32 |
| ; AUTO_VEC-NEXT: [[EXITCOND:%.*]] = icmp eq i32 [[LFTR_WIDEIV]], [[N]] |
| ; AUTO_VEC-NEXT: br i1 [[EXITCOND]], label %[[FOR_END_LOOPEXIT:.*]], label %[[LOOP]] |
| ; AUTO_VEC: [[FOR_END_LOOPEXIT]]: |
| ; AUTO_VEC-NEXT: br label %[[FOR_END]] |
| ; AUTO_VEC: [[FOR_END]]: |
| ; AUTO_VEC-NEXT: ret void |
| ; |
| entry: |
| %cmp4 = icmp sgt i32 %N, 0 |
| br i1 %cmp4, label %loop.preheader, label %for.end |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %loop.preheader, %loop |
| %iv = phi i64 [ %iv.next, %loop ], [ 0, %loop.preheader ] |
| %x.06 = phi float [ %conv1, %loop ], [ 1.000000e+00, %loop.preheader ] |
| %arrayidx = getelementptr inbounds float, ptr %A, i64 %iv |
| store float %x.06, ptr %arrayidx, align 4 |
| %conv1 = fadd float %x.06, 5.000000e-01 |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %lftr.wideiv = trunc i64 %iv.next to i32 |
| %exitcond = icmp eq i32 %lftr.wideiv, %N |
| br i1 %exitcond, label %for.end.loopexit, label %loop |
| |
| for.end.loopexit: ; preds = %loop |
| br label %for.end |
| |
| for.end: ; preds = %for.end.loopexit, %entry |
| ret void |
| } |
| |
| define double @external_use_with_fast_math(ptr %a, i64 %n) { |
| ; AUTO_VEC-LABEL: define double @external_use_with_fast_math( |
| ; AUTO_VEC-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) #[[ATTR0]] { |
| ; AUTO_VEC-NEXT: [[ENTRY:.*]]: |
| ; AUTO_VEC-NEXT: [[SMAX:%.*]] = call i64 @llvm.smax.i64(i64 [[N]], i64 1) |
| ; AUTO_VEC-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[SMAX]], 16 |
| ; AUTO_VEC-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]] |
| ; AUTO_VEC: [[VECTOR_PH]]: |
| ; AUTO_VEC-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[SMAX]], 16 |
| ; AUTO_VEC-NEXT: [[N_VEC:%.*]] = sub i64 [[SMAX]], [[N_MOD_VF]] |
| ; AUTO_VEC-NEXT: [[DOTCAST:%.*]] = sitofp i64 [[N_VEC]] to double |
| ; AUTO_VEC-NEXT: [[TMP0:%.*]] = fmul fast double 3.000000e+00, [[DOTCAST]] |
| ; AUTO_VEC-NEXT: [[TMP6:%.*]] = fadd fast double 0.000000e+00, [[TMP0]] |
| ; AUTO_VEC-NEXT: br label %[[VECTOR_BODY:.*]] |
| ; AUTO_VEC: [[VECTOR_BODY]]: |
| ; AUTO_VEC-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ] |
| ; AUTO_VEC-NEXT: [[VEC_IND:%.*]] = phi <4 x double> [ <double 0.000000e+00, double 3.000000e+00, double 6.000000e+00, double 9.000000e+00>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ] |
| ; AUTO_VEC-NEXT: [[STEP_ADD:%.*]] = fadd fast <4 x double> [[VEC_IND]], splat (double 1.200000e+01) |
| ; AUTO_VEC-NEXT: [[STEP_ADD_2:%.*]] = fadd fast <4 x double> [[STEP_ADD]], splat (double 1.200000e+01) |
| ; AUTO_VEC-NEXT: [[STEP_ADD_3:%.*]] = fadd fast <4 x double> [[STEP_ADD_2]], splat (double 1.200000e+01) |
| ; AUTO_VEC-NEXT: [[TMP1:%.*]] = getelementptr double, ptr [[A]], i64 [[INDEX]] |
| ; AUTO_VEC-NEXT: [[TMP2:%.*]] = getelementptr double, ptr [[TMP1]], i32 4 |
| ; AUTO_VEC-NEXT: [[TMP3:%.*]] = getelementptr double, ptr [[TMP1]], i32 8 |
| ; AUTO_VEC-NEXT: [[TMP4:%.*]] = getelementptr double, ptr [[TMP1]], i32 12 |
| ; AUTO_VEC-NEXT: store <4 x double> [[VEC_IND]], ptr [[TMP1]], align 8 |
| ; AUTO_VEC-NEXT: store <4 x double> [[STEP_ADD]], ptr [[TMP2]], align 8 |
| ; AUTO_VEC-NEXT: store <4 x double> [[STEP_ADD_2]], ptr [[TMP3]], align 8 |
| ; AUTO_VEC-NEXT: store <4 x double> [[STEP_ADD_3]], ptr [[TMP4]], align 8 |
| ; AUTO_VEC-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16 |
| ; AUTO_VEC-NEXT: [[VEC_IND_NEXT]] = fadd fast <4 x double> [[STEP_ADD_3]], splat (double 1.200000e+01) |
| ; AUTO_VEC-NEXT: [[TMP5:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; AUTO_VEC-NEXT: br i1 [[TMP5]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]] |
| ; AUTO_VEC: [[MIDDLE_BLOCK]]: |
| ; AUTO_VEC-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[SMAX]], [[N_VEC]] |
| ; AUTO_VEC-NEXT: [[TMP7:%.*]] = fsub fast double [[TMP6]], 3.000000e+00 |
| ; AUTO_VEC-NEXT: br i1 [[CMP_N]], label %[[FOR_END:.*]], label %[[SCALAR_PH]] |
| ; AUTO_VEC: [[SCALAR_PH]]: |
| ; AUTO_VEC-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ] |
| ; AUTO_VEC-NEXT: [[BC_RESUME_VAL1:%.*]] = phi double [ [[TMP6]], %[[MIDDLE_BLOCK]] ], [ 0.000000e+00, %[[ENTRY]] ] |
| ; AUTO_VEC-NEXT: br label %[[LOOP:.*]] |
| ; AUTO_VEC: [[LOOP]]: |
| ; AUTO_VEC-NEXT: [[I:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[I_NEXT:%.*]], %[[LOOP]] ] |
| ; AUTO_VEC-NEXT: [[J:%.*]] = phi double [ [[BC_RESUME_VAL1]], %[[SCALAR_PH]] ], [ [[J_NEXT:%.*]], %[[LOOP]] ] |
| ; AUTO_VEC-NEXT: [[T0:%.*]] = getelementptr double, ptr [[A]], i64 [[I]] |
| ; AUTO_VEC-NEXT: store double [[J]], ptr [[T0]], align 8 |
| ; AUTO_VEC-NEXT: [[I_NEXT]] = add i64 [[I]], 1 |
| ; AUTO_VEC-NEXT: [[J_NEXT]] = fadd fast double [[J]], 3.000000e+00 |
| ; AUTO_VEC-NEXT: [[COND:%.*]] = icmp slt i64 [[I_NEXT]], [[N]] |
| ; AUTO_VEC-NEXT: br i1 [[COND]], label %[[LOOP]], label %[[FOR_END]], !llvm.loop [[LOOP7:![0-9]+]] |
| ; AUTO_VEC: [[FOR_END]]: |
| ; AUTO_VEC-NEXT: [[J_LCSSA:%.*]] = phi double [ [[J]], %[[LOOP]] ], [ [[TMP7]], %[[MIDDLE_BLOCK]] ] |
| ; AUTO_VEC-NEXT: ret double [[J_LCSSA]] |
| ; |
| entry: |
| br label %loop |
| |
| loop: |
| %i = phi i64 [ 0, %entry ], [%i.next, %loop] |
| %j = phi double [ 0.0, %entry ], [ %j.next, %loop ] |
| %t0 = getelementptr double, ptr %a, i64 %i |
| store double %j, ptr %t0 |
| %i.next = add i64 %i, 1 |
| %j.next = fadd fast double %j, 3.0 |
| %cond = icmp slt i64 %i.next, %n |
| br i1 %cond, label %loop, label %for.end |
| |
| for.end: |
| %t1 = phi double [ %j, %loop ] |
| ret double %t1 |
| } |
| |
| define double @external_use_without_fast_math(ptr %a, i64 %n) { |
| ; AUTO_VEC-LABEL: define double @external_use_without_fast_math( |
| ; AUTO_VEC-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) #[[ATTR0]] { |
| ; AUTO_VEC-NEXT: [[ENTRY:.*]]: |
| ; AUTO_VEC-NEXT: br label %[[LOOP:.*]] |
| ; AUTO_VEC: [[LOOP]]: |
| ; AUTO_VEC-NEXT: [[I:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[I_NEXT_7:%.*]], %[[LOOP]] ] |
| ; AUTO_VEC-NEXT: [[J:%.*]] = phi double [ 0.000000e+00, %[[ENTRY]] ], [ [[J_NEXT_7:%.*]], %[[LOOP]] ] |
| ; AUTO_VEC-NEXT: [[TMP7:%.*]] = getelementptr double, ptr [[A]], i64 [[I]] |
| ; AUTO_VEC-NEXT: store double [[J]], ptr [[TMP7]], align 8 |
| ; AUTO_VEC-NEXT: [[I_NEXT_7]] = add i64 [[I]], 1 |
| ; AUTO_VEC-NEXT: [[J_NEXT_7]] = fadd double [[J]], 3.000000e+00 |
| ; AUTO_VEC-NEXT: [[COND:%.*]] = icmp slt i64 [[I_NEXT_7]], [[N]] |
| ; AUTO_VEC-NEXT: br i1 [[COND]], label %[[LOOP]], label %[[FOR_END:.*]] |
| ; AUTO_VEC: [[FOR_END]]: |
| ; AUTO_VEC-NEXT: [[J_LCSSA:%.*]] = phi double [ [[J]], %[[LOOP]] ] |
| ; AUTO_VEC-NEXT: ret double [[J_LCSSA]] |
| ; |
| entry: |
| br label %loop |
| |
| loop: |
| %i = phi i64 [ 0, %entry ], [%i.next, %loop] |
| %j = phi double [ 0.0, %entry ], [ %j.next, %loop ] |
| %t0 = getelementptr double, ptr %a, i64 %i |
| store double %j, ptr %t0 |
| %i.next = add i64 %i, 1 |
| %j.next = fadd double %j, 3.0 |
| %cond = icmp slt i64 %i.next, %n |
| br i1 %cond, label %loop, label %for.end |
| |
| for.end: |
| %t1 = phi double [ %j, %loop ] |
| ret double %t1 |
| } |
| |
| ;; void fadd_induction(ptr p, unsigned N) { |
| ;; float x = 1.0f; |
| ;; for (unsigned i=0; i!=N; ++i) { |
| ;; p[i] = p[i] + x; |
| ;; x += 42.0f; |
| ;; } |
| ;; } |
| |
| define void @fadd_reassoc_FMF(ptr nocapture %p, i32 %N) { |
| ; AUTO_VEC-LABEL: define void @fadd_reassoc_FMF( |
| ; AUTO_VEC-SAME: ptr captures(none) [[P:%.*]], i32 [[N:%.*]]) #[[ATTR0]] { |
| ; AUTO_VEC-NEXT: [[ITER_CHECK:.*]]: |
| ; AUTO_VEC-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64 |
| ; AUTO_VEC-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP0]], 4 |
| ; AUTO_VEC-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[VEC_EPILOG_SCALAR_PH:.*]], label %[[VECTOR_MAIN_LOOP_ITER_CHECK:.*]] |
| ; AUTO_VEC: [[VECTOR_MAIN_LOOP_ITER_CHECK]]: |
| ; AUTO_VEC-NEXT: [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 [[TMP0]], 32 |
| ; AUTO_VEC-NEXT: br i1 [[MIN_ITERS_CHECK1]], label %[[VEC_EPILOG_PH:.*]], label %[[VECTOR_PH:.*]] |
| ; AUTO_VEC: [[VECTOR_PH]]: |
| ; AUTO_VEC-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP0]], 32 |
| ; AUTO_VEC-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP0]], [[N_MOD_VF]] |
| ; AUTO_VEC-NEXT: [[DOTCAST:%.*]] = sitofp i64 [[N_VEC]] to float |
| ; AUTO_VEC-NEXT: [[TMP1:%.*]] = fmul reassoc float 4.200000e+01, [[DOTCAST]] |
| ; AUTO_VEC-NEXT: [[IND_END:%.*]] = fadd reassoc float 1.000000e+00, [[TMP1]] |
| ; AUTO_VEC-NEXT: br label %[[VECTOR_BODY:.*]] |
| ; AUTO_VEC: [[VECTOR_BODY]]: |
| ; AUTO_VEC-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ] |
| ; AUTO_VEC-NEXT: [[VEC_IND:%.*]] = phi <8 x float> [ <float 1.000000e+00, float 4.300000e+01, float 8.500000e+01, float 1.270000e+02, float 1.690000e+02, float 2.110000e+02, float 2.530000e+02, float 2.950000e+02>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ] |
| ; AUTO_VEC-NEXT: [[STEP_ADD:%.*]] = fadd reassoc <8 x float> [[VEC_IND]], splat (float 3.360000e+02) |
| ; AUTO_VEC-NEXT: [[STEP_ADD2:%.*]] = fadd reassoc <8 x float> [[STEP_ADD]], splat (float 3.360000e+02) |
| ; AUTO_VEC-NEXT: [[STEP_ADD3:%.*]] = fadd reassoc <8 x float> [[STEP_ADD2]], splat (float 3.360000e+02) |
| ; AUTO_VEC-NEXT: [[TMP2:%.*]] = getelementptr inbounds float, ptr [[P]], i64 [[INDEX]] |
| ; AUTO_VEC-NEXT: [[TMP3:%.*]] = getelementptr inbounds float, ptr [[TMP2]], i32 8 |
| ; AUTO_VEC-NEXT: [[TMP4:%.*]] = getelementptr inbounds float, ptr [[TMP2]], i32 16 |
| ; AUTO_VEC-NEXT: [[TMP5:%.*]] = getelementptr inbounds float, ptr [[TMP2]], i32 24 |
| ; AUTO_VEC-NEXT: [[WIDE_LOAD:%.*]] = load <8 x float>, ptr [[TMP2]], align 4 |
| ; AUTO_VEC-NEXT: [[WIDE_LOAD2:%.*]] = load <8 x float>, ptr [[TMP3]], align 4 |
| ; AUTO_VEC-NEXT: [[WIDE_LOAD3:%.*]] = load <8 x float>, ptr [[TMP4]], align 4 |
| ; AUTO_VEC-NEXT: [[WIDE_LOAD4:%.*]] = load <8 x float>, ptr [[TMP5]], align 4 |
| ; AUTO_VEC-NEXT: [[TMP6:%.*]] = fadd reassoc <8 x float> [[VEC_IND]], [[WIDE_LOAD]] |
| ; AUTO_VEC-NEXT: [[TMP7:%.*]] = fadd reassoc <8 x float> [[STEP_ADD]], [[WIDE_LOAD2]] |
| ; AUTO_VEC-NEXT: [[TMP8:%.*]] = fadd reassoc <8 x float> [[STEP_ADD2]], [[WIDE_LOAD3]] |
| ; AUTO_VEC-NEXT: [[TMP9:%.*]] = fadd reassoc <8 x float> [[STEP_ADD3]], [[WIDE_LOAD4]] |
| ; AUTO_VEC-NEXT: store <8 x float> [[TMP6]], ptr [[TMP2]], align 4 |
| ; AUTO_VEC-NEXT: store <8 x float> [[TMP7]], ptr [[TMP3]], align 4 |
| ; AUTO_VEC-NEXT: store <8 x float> [[TMP8]], ptr [[TMP4]], align 4 |
| ; AUTO_VEC-NEXT: store <8 x float> [[TMP9]], ptr [[TMP5]], align 4 |
| ; AUTO_VEC-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 32 |
| ; AUTO_VEC-NEXT: [[VEC_IND_NEXT]] = fadd reassoc <8 x float> [[STEP_ADD3]], splat (float 3.360000e+02) |
| ; AUTO_VEC-NEXT: [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; AUTO_VEC-NEXT: br i1 [[TMP10]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]] |
| ; AUTO_VEC: [[MIDDLE_BLOCK]]: |
| ; AUTO_VEC-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP0]], [[N_VEC]] |
| ; AUTO_VEC-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[VEC_EPILOG_ITER_CHECK:.*]] |
| ; AUTO_VEC: [[VEC_EPILOG_ITER_CHECK]]: |
| ; AUTO_VEC-NEXT: [[DOTCAST16:%.*]] = sitofp i64 [[N_VEC]] to float |
| ; AUTO_VEC-NEXT: [[TMP12:%.*]] = fmul reassoc float 4.200000e+01, [[DOTCAST16]] |
| ; AUTO_VEC-NEXT: [[IND_END1:%.*]] = fadd reassoc float 1.000000e+00, [[TMP12]] |
| ; AUTO_VEC-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_MOD_VF]], 4 |
| ; AUTO_VEC-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label %[[VEC_EPILOG_SCALAR_PH]], label %[[VEC_EPILOG_PH]], !prof [[PROF3]] |
| ; AUTO_VEC: [[VEC_EPILOG_PH]]: |
| ; AUTO_VEC-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 0, %[[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; AUTO_VEC-NEXT: [[BC_RESUME_VAL:%.*]] = phi float [ [[IND_END]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 1.000000e+00, %[[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; AUTO_VEC-NEXT: [[N_MOD_VF5:%.*]] = urem i64 [[TMP0]], 4 |
| ; AUTO_VEC-NEXT: [[N_VEC6:%.*]] = sub i64 [[TMP0]], [[N_MOD_VF5]] |
| ; AUTO_VEC-NEXT: [[DOTCAST7:%.*]] = sitofp i64 [[N_VEC6]] to float |
| ; AUTO_VEC-NEXT: [[TMP17:%.*]] = fmul reassoc float 4.200000e+01, [[DOTCAST7]] |
| ; AUTO_VEC-NEXT: [[TMP18:%.*]] = fadd reassoc float 1.000000e+00, [[TMP17]] |
| ; AUTO_VEC-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <4 x float> poison, float [[BC_RESUME_VAL]], i64 0 |
| ; AUTO_VEC-NEXT: [[DOTSPLAT:%.*]] = shufflevector <4 x float> [[DOTSPLATINSERT]], <4 x float> poison, <4 x i32> zeroinitializer |
| ; AUTO_VEC-NEXT: [[INDUCTION:%.*]] = fadd reassoc <4 x float> [[DOTSPLAT]], <float 0.000000e+00, float 4.200000e+01, float 8.400000e+01, float 1.260000e+02> |
| ; AUTO_VEC-NEXT: br label %[[VEC_EPILOG_VECTOR_BODY:.*]] |
| ; AUTO_VEC: [[VEC_EPILOG_VECTOR_BODY]]: |
| ; AUTO_VEC-NEXT: [[INDEX13:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], %[[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT17:%.*]], %[[VEC_EPILOG_VECTOR_BODY]] ] |
| ; AUTO_VEC-NEXT: [[VEC_IND14:%.*]] = phi <4 x float> [ [[INDUCTION]], %[[VEC_EPILOG_PH]] ], [ [[VEC_IND_NEXT15:%.*]], %[[VEC_EPILOG_VECTOR_BODY]] ] |
| ; AUTO_VEC-NEXT: [[TMP13:%.*]] = getelementptr inbounds float, ptr [[P]], i64 [[INDEX13]] |
| ; AUTO_VEC-NEXT: [[WIDE_LOAD16:%.*]] = load <4 x float>, ptr [[TMP13]], align 4 |
| ; AUTO_VEC-NEXT: [[TMP14:%.*]] = fadd reassoc <4 x float> [[VEC_IND14]], [[WIDE_LOAD16]] |
| ; AUTO_VEC-NEXT: store <4 x float> [[TMP14]], ptr [[TMP13]], align 4 |
| ; AUTO_VEC-NEXT: [[INDEX_NEXT17]] = add nuw i64 [[INDEX13]], 4 |
| ; AUTO_VEC-NEXT: [[VEC_IND_NEXT15]] = fadd reassoc <4 x float> [[VEC_IND14]], splat (float 1.680000e+02) |
| ; AUTO_VEC-NEXT: [[TMP15:%.*]] = icmp eq i64 [[INDEX_NEXT17]], [[N_VEC6]] |
| ; AUTO_VEC-NEXT: br i1 [[TMP15]], label %[[VEC_EPILOG_MIDDLE_BLOCK:.*]], label %[[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]] |
| ; AUTO_VEC: [[VEC_EPILOG_MIDDLE_BLOCK]]: |
| ; AUTO_VEC-NEXT: [[CMP_N18:%.*]] = icmp eq i64 [[TMP0]], [[N_VEC6]] |
| ; AUTO_VEC-NEXT: br i1 [[CMP_N18]], label %[[EXIT]], label %[[VEC_EPILOG_SCALAR_PH]] |
| ; AUTO_VEC: [[VEC_EPILOG_SCALAR_PH]]: |
| ; AUTO_VEC-NEXT: [[BC_RESUME_VAL14:%.*]] = phi i64 [ [[N_VEC6]], %[[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[N_VEC]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 0, %[[ITER_CHECK]] ] |
| ; AUTO_VEC-NEXT: [[BC_RESUME_VAL15:%.*]] = phi float [ [[TMP18]], %[[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[IND_END1]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 1.000000e+00, %[[ITER_CHECK]] ] |
| ; AUTO_VEC-NEXT: br label %[[LOOP:.*]] |
| ; AUTO_VEC: [[LOOP]]: |
| ; AUTO_VEC-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[BC_RESUME_VAL14]], %[[VEC_EPILOG_SCALAR_PH]] ], [ [[INDVARS_IV_NEXT:%.*]], %[[LOOP]] ] |
| ; AUTO_VEC-NEXT: [[X_012:%.*]] = phi float [ [[BC_RESUME_VAL15]], %[[VEC_EPILOG_SCALAR_PH]] ], [ [[ADD3:%.*]], %[[LOOP]] ] |
| ; AUTO_VEC-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[P]], i64 [[INDVARS_IV]] |
| ; AUTO_VEC-NEXT: [[TMP16:%.*]] = load float, ptr [[ARRAYIDX]], align 4 |
| ; AUTO_VEC-NEXT: [[ADD:%.*]] = fadd reassoc float [[X_012]], [[TMP16]] |
| ; AUTO_VEC-NEXT: store float [[ADD]], ptr [[ARRAYIDX]], align 4 |
| ; AUTO_VEC-NEXT: [[ADD3]] = fadd reassoc float [[X_012]], 4.200000e+01 |
| ; AUTO_VEC-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 |
| ; AUTO_VEC-NEXT: [[CMP_NOT:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], [[TMP0]] |
| ; AUTO_VEC-NEXT: br i1 [[CMP_NOT]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP10:![0-9]+]] |
| ; AUTO_VEC: [[EXIT]]: |
| ; AUTO_VEC-NEXT: ret void |
| ; |
| entry: |
| %0 = zext i32 %N to i64 |
| br label %loop |
| |
| loop: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] |
| %x.012 = phi float [ 1.000000e+00, %entry ], [ %add3, %loop ] |
| %arrayidx = getelementptr inbounds float, ptr %p, i64 %iv |
| %1 = load float, ptr %arrayidx, align 4 |
| %add = fadd reassoc float %x.012, %1 |
| store float %add, ptr %arrayidx, align 4 |
| %add3 = fadd reassoc float %x.012, 4.200000e+01 |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %cmp.not = icmp eq i64 %iv.next, %0 |
| br i1 %cmp.not, label %exit, label %loop |
| |
| exit: |
| ret void |
| } |
